efficient access to data, efficient access to the network and prioritized access for emergency responders. First, we propose a hybrid XML forwarding engine for content-based routing. The forwarding engine matches stored policies against incoming XML documents. Our forwarding engine examines the type

requests in the collision resolution process is estimated by looking up a predetermined table of the most likely number of requests (MLR). In addition, SOMA is modified to reduce the request access delay by relaxing its allocation policy in a specific situation. We use a self-similar traffic model

allocation policies for WLANs in terms of total network throughput by up to 135%.

XDQRAP (eXtended Distributed Queuing Random Access Protocol) MAC protocol is one of many solutions proposed by IEEE 802.14 Working Group in order to define a common background for broadband/multimedia residential services emerging in a near future based on HFC (Hybrid Fiber Coax) access networks

Abstract—Optical and wireless network technologies are ex-pected to converge in the near to midterm, giving rise to bimodal fiber-wireless (FiWi) broadband access networks. In triple-play (voice, video, and data) service scenarios for such FiWi access networks, video traffic will likely dominate

I would like to thank Prof. Dr. Torsten Braun, head of the Computer Network and Distributed Systems group (RVS), for supervising this work and for his insightful advises. Prof. Dr. Torsten Braun encouraged and motivated me to publish my research results and he provided me the opportunity to present

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1. Networking trends 2. QoS over data networks 3. Label switching 4. Gigabit, 10 Gb Ethernet, RPR 5. Storage area networks 6. IP over DWDM 7. Wireless 8. Voice over IP

Radio power management is of paramount concern in wireless sensor networks that must achieve long lifetimes on scarce amounts of energy. While a multitude of power management protocols have been proposed in the past, the lack of system support for flexibly integrating them with a diverse set